Finding the Fourth Proportional to 2,003.22, 3,002.81 and 961.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.22 : 3,002.81 = 961.70 : x
2. Step 2: Convert to fraction form
   2,003.22/3,002.81 = 961.70/x
3. Step 3: Cross multiply
   2,003.22x = 3,002.81 × 961.70
4. Step 4: Simplify right side
   2,003.22x = 2,887,782.55
5. Step 5: Solve for x
   x = 2,887,782.55/2,003.22
6. Step 6: Final answer
   x = 1,441.57